Tuning-peg adjustment fob stringed musical instruments



C. E. SAGE.

TUNING PEG ADJUSTMENT FOR STRINGED MUSICAL INSTRUMENTS.

' APPLICATION FILED NOV. 25. I918.

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. THE COLUMBIA PLANOGRAPH 0'10", :1. c. I

CHARLES E. SAGE, OF ROCHESTER, NEW YORK.

TUNING-PEG ADJUSTMENT FOR STRINGED MUSICAL INSTRUMENTS.

Specification of Letters Patent.

Patented July 15, 1919.

Application filed November 25, 1918. Serial No. 263,949.

To allwhom it may concern:

Be it known that I, CHARLES E. SAGE, a citizen of the United States, andresident of Rochester, in the county of Monroe and State of New York,have invented certain new and useful Improvements in Tuning- PegAdjustments for Stringed Musical Instruments, of which the following isa specification.

The present invention relates to a tuning peg ad ustment for stringedmusical instruments of the type in which a number of pegs are arrangedin a head and have the strings connected thereto for the purpose ofadjusting the tension on the strings, an object of this invention beingto provide a device which may be associated withthe ordinary head of aviolin for the purpose of maintaining a string adjustment without makingit necessary to injure the head by the use of screws, nails or similarfastening devices which would penetrate the head. Another object of theinvention is to provide an ad justing means which will automaticallymove a tapered tuning peg axially into and out of binding engagementwith the head upon the mere turning of the eg, while at the same timeholdin the peg in its adjusted position against accidental slipping.

To these and other ends, the invention consists of certain parts andcombinations of parts all of which will be hereinafter described, thenovel features being pointed out in the appended claims.

In the drawings 2- Figure 1 is a side view of the head of a violin withthe present invention applied thereto;

Fig. 2 is an enlarged, fragmentary view of the head with one of theadjusting devices shown in partial section;

Fig. 3 is a fragmentary view of the head and a peg showing one of theadjusting devices in elevation; and

Fig. 4 is a fragmentary view of the head showing a tuning peg incross-section and an adjusting device in side elevation at right anglesto the view shown in Fig. 3.

Referring more particularly to the drawings, 1 indicates the head of theviolin and 2 the tuning pegs which are turnable in said head, the pegsbeing tapered and movable axially into and out of binding engagementwith the head 1, and the strings 3 being connected to the pegs in theusual manner.

The adjusting means embodies a frame which, in this instance, is madefrom a single piece of sheet metal bent at l to provide two parallelportions 5 and 6, one of said portions having an extension 7 bent tooverlap the portion 5. The portions 5 and 6 are formed with alinedopenings, and in these openings a sleeve or collar 8 is received, thissleeve or collar having the tapered portion of the tuning peg 2 passedtheretln'ough. The outer end of this sleeve or collar is formed with aseries of notches 9, each of which is undercut to provide two inclinedfaces 10 and 11. On the tuning peg 2 a lateral projection 12 isprovided, and this projection is adapted to enter successively undercutnotches 9 in the rotary sleeve or collar 8 when the tuning peg 2 isturned relatively to the sleeve or collar in one direction. The inclinedface 10 on each undercut notch or recess 9 facilitates the turning ofthe tuning peg in one direction, and at the same time produces an axialmovement of the tun ing peg out of binding engagement with the head 1,while the inclined face 11 of the undercut recess 9 prevents the turningof the peg 2- in the opposite direction, and at the same time acts onthe projection 12 when the peg is released to the tension of its stringto move said peg axially into binding engagement with the head 1. Thisturning of the peg 2 in the sleeve 8 provides for the rough adjustmentof the peg.

To secure a fine adjustment after the rough adjustment has beenobtained, the sleeve or collar 8 is provided with means for turning thesame, and to this end it may be surrounded by a worm wheel 13 which liesbetween the portions 5 and 6 of the frame and is engaged by a worm 14which is journaled at its ends in two ears 15 bent into parallelrelation from the stock of the frame at the bend 4:, and having a thumbpiece 16 secured to one end beyond one of the ears 15.

The frame on which the rotary collar 8 is mounted to turn is secured tothe head of the musical instrument preferably without the use of nails,screws or other fastening devices which would tend to injure the head,and which would also require a skilled work man to attach the same. Thisresult is secured by providing the portion 5 of the frame with a lip ortongue 17 bent into hook form to overhang the head 1 at one side of thetuning peg.

For attaching the devices the ordinary tuning pegs of the instrumenteach have the pin 12 driven transversely therethrough near the inner endof its tapered portion,and the f aims is then hooked upon the head 1through the hook device 17 the tuning pin being introduced through thesleeve 8 and through the usual openings in the head. The pin 12 shouldnot engage the bottom of the notch 9 in order that the inclined Wall 11may hold the tuning peg not only against turning, but in firm bindingengagement with the head 1. To tighten the string, the tuning peg isfirst turned to obtain the rough adjustment, after which the worm. 14 isturned to turn the collar or sleeve 8 in order to secure the fine adjustn'ient.

'From the foregoing it will be seen that there has been provided atuning peg adj ustment which may be attached by an unskilled workman toany instrumentwithout the use of screws, nailsor other fasteningdevices. This adjustment tends to move the tapered tuning peg out ofbinding engagement with theheadiupon the rotatlon of the peg in onedirection, and upon the release of the peg to .move the latteraxiallyinto binding engagement with the head. The frame of the adjusting meansis ofsimple construction, and maybe readily formed from a single pieceofsheet metal.

hat I claim as my invention and desire to secure by Letters Patent is 1.A tuning peg adjustment for stringed musical instruments comprising incombination with a head off a musical instrument and a tuning pegturning therein, said peg being provided with alateral projection, aframe 1 having a hook projecting therefrom and detach-ably engaging withthe head, a sleeve turning in said frame and formed with a series ofnotches in one end, said sleeve receiving the tuning peg therethroughand the ingmeans on .the sleeve and the peg to cause the peg-to turnwith the sleeve while at the same time permitting the peg to turn in thesleeve in OIIBKllIQClZlOILbUt not in the other.

CHARLES E. SAGE.

Copies of this patent may be obtainedior, five cents each, by addressingthe Commissionenot Patents, Washington, ID. 0.

